专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2009257197A High-pressure fuel supply pump 有权
标题翻译：高压燃油泵
公开(公告)号：JP2009257197A
公开(公告)日：2009-11-05
申请号：JP2008107386
申请日：2008-04-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYAZAKI KATSUMI , USUI SATOSHI , YAMADA HIROYUKI
IPC分类号： F02M59/46 , F02M59/44
摘要： PROBLEM TO BE SOLVED: To prevent fuel from leaking due to fuel pressure in a high-pressure passage side exceeding an acceptable value of high-pressure piping when a high-pressure fuel feed pump having an increased capacity is used for increasing the feed amount of high-pressure fuel.
SOLUTION: At least two relief valves are provided to a pump housing. Thereby, the high-pressure feeding pump that exerts a sufficient relief function is provided without increasing the size of the pump itself so much using a surplus space of the pump housing effectively even when the high-pressure fuel feed pump is increased in capacity for increasing the feed amount of high-pressure fuel.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止在具有增加容量的高压燃料供给泵使用具有增加容量的高压燃料供给泵时，由于在高压通道侧的燃料压力超过高压管道的可接受值的燃料泄漏，进料量的高压燃料。
解决方案：至少两个安全阀设置在泵壳体上。由此，即使在高压燃料供给泵的能力增加的情况下，即使在高压燃料供给泵增加的情况下也能够有效地利用泵壳体的剩余空间而不增加泵本身的尺寸，高压燃料的进料量。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009108738A Plunger type high-pressure fuel pump 有权
标题翻译： PLUNGER型高压燃油泵
公开(公告)号：JP2009108738A
公开(公告)日：2009-05-21
申请号：JP2007280553
申请日：2007-10-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TOKUO KENICHIRO , USUI SATOSHI , YAMADA HIROYUKI , SHIMADA JUNICHI , ABE MASAMI
IPC分类号： F02M59/34 , F02M51/00 , F02M59/46
CPC分类号： F04B53/10 , F02M59/102 , F02M59/366 , F02M59/367 , F02M63/0015 , F02M63/004 , F02M63/0042 , F02M63/0043 , F02M63/0078 , F02M63/025 , F02M2200/28 , F02M2200/304
摘要： PROBLEM TO BE SOLVED: To prevent variations of valve-closing operation caused by a pressure difference generated between a hermetically closed space defined inside a solenoid valve of a fuel pump and an external space outside thereof. SOLUTION: The plunger type high-pressure fuel pump comprises: a plunger reciprocating in a cylinder of a pump; a pressure chamber of fluid, constituted of the plunger and the cylinder; a solenoid valve disposed between the pressure chamber and a fluid suction passage; and a delivery valve. The solenoid valve includes: a valve element 91 including a suction valve 5; a solenoid coil moving the valve element; an anchor 32 made of a magnetic material provided integrally with the valve element 91; and a core 30 forming a magnetic circuit to attract the anchor 32 by the electromagnetic force and dividing the inside of the solenoid valve into a hermetically closed space 38 and an external space 39 communicating with the fluid suction passage. The anchor 32 or the core 30 is provided with a fluid passage 41 through which fluid can flow between the hermetically closed space 38 and the external space 39 formed by the anchor 32 and the core 30, respectively when the suction valve 5 is in an opened state. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了防止由限定在燃料泵的电磁阀内的气密封闭空间与其外部的外部空间之间产生的压力差引起的关闭阀操作的变化。解决方案：柱塞式高压燃料泵包括：在泵的气缸中往复运动的柱塞; 由柱塞和气缸构成的流体压力室; 设置在所述压力室和流体吸入通道之间的电磁阀; 和输送阀。电磁阀包括：阀元件91，其包括吸入阀5; 使阀元件移动的电磁线圈; 由与阀元件91一体设置的磁性材料制成的锚固件32; 以及形成磁路的磁芯30，以通过电磁力吸引锚固体32，并将电磁阀的内部分成密封空间38和与流体抽吸通道连通的外部空间39。锚32或芯30设置有流体通道41，当吸入阀5处于打开状态时，流体可以分别通过该流体通道41在气密封闭空间38和由锚固件32和芯30形成的外部空间39之间流动州。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008014319A Damper mechanism and high pressure fuel supply pump 有权
标题翻译：阻尼机构和高压燃油泵
公开(公告)号：JP2008014319A
公开(公告)日：2008-01-24
申请号：JP2007234861
申请日：2007-09-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： USUI SATOSHI , HASHIDA MINORU
IPC分类号： F02M59/44 , F02M55/00
摘要： PROBLEM TO BE SOLVED: To obtain a high pressure fuel supply pump having a small size and a high efficient damper mechanism or a miniature size and a high efficient damper mechanism which reduces pulsation of the low pressure side fuel of a high pressure fuel supply pump in a high pressure fuel supply system.
SOLUTION: The damper mechanism includes a metal diaphragm assembly (also it is called two-sheet type metal diaphragm damper) 80 in which two metal diaphragms are welded at entire peripheries sandwiched between the entire peripheries except the welded parts (for instance, inner peripheral sides) or parts by a pressing member and fixed to a storage container 10b, 10c. The storage container 10b, 10c can be formed integrally with a body of high pressure pump.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了获得具有小尺寸和高效阻尼机构的高压燃料供给泵或微型尺寸和高效阻尼机构，其减少高压燃料的低压侧燃料的脉动供应泵在高压燃料供应系统。解决方案：阻尼器机构包括金属隔膜组件（也称为两片式金属隔膜阻尼器）80，其中两个金属隔膜在除了焊接部件之外的整个外围处夹在整个外围处的整个外围被焊接（例如，内周侧）或部件，并被固定到存储容器10b，10c。储存容器10b，10c可与高压泵体一体地形成。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2008057451A High-pressure fuel supply pump 审中-公开
标题翻译：高压燃油泵
公开(公告)号：JP2008057451A
公开(公告)日：2008-03-13
申请号：JP2006235866
申请日：2006-08-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： USUI SATOSHI , YAMADA HIROYUKI , TOKUO KENICHIRO , HASHIDA MINORU , YAMAMURA TAKESHI , HIMOTO TORU , TAKAHASHI SUNAO
IPC分类号： F02M55/00 , F02M55/02 , F02M59/44 , F02M59/46
CPC分类号： F02M63/0245 , F02M55/04 , F02M59/366 , F02M59/367 , F02M59/462 , F02M63/005 , F02M63/0054 , F02M63/0056
摘要： PROBLEM TO BE SOLVED: To prevent a relief valve from being opened even if pressure of discharged fuel is instantaneously increased and extremely high, in a transient state where a discharge valve is opened to pressurize a high-pressure fuel pump. SOLUTION: A mechanism is disposed in a fuel discharge passage upstream (that is, a discharge valve side) of the relief valve in a fuel relief passage, so as to prevent propagation of instantaneous pressure increase in the passage to the relief valve. Concretely, an orifice or a mechanism is disposed to the relief passage. The orifice damps operation energy acting on the relief valve, which operational energy is on the bases of the pressure increase on a discharge passage side in a short period and is generated during valve opening operation of the high-pressure pump. The mechanism blocks transmission of the instantaneous abnormal pressure. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在排出阀打开以对高压燃料泵进行加压的过渡状态下，即使在排出的燃料的压力瞬时增加并且极高的情况下，也可以防止溢流阀的打开。解决方案：一种机构设置在燃料排放通道中的安全阀的上游（即，排出阀侧）的燃料排出通道中，以防止通道中的瞬时压力增加到安全阀的传播。具体地说，在排泄通道上设有孔口或机构。节流孔阻止作用在安全阀上的操作能量，其操作能量是在短时间内在排放通道侧的压力增加的基础上，并且在高压泵的开阀操作期间产生。该机制阻止了瞬时异常压力的传递。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2008025425A High pressure fuel pump 有权
标题翻译：高压燃油泵
公开(公告)号：JP2008025425A
公开(公告)日：2008-02-07
申请号：JP2006197558
申请日：2006-07-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HASHIDA MINORU , YAMADA HIROYUKI , SHIMADA JUNICHI , ONOSE TORU , USUI SATOSHI , ABE MASAMI , HIMOTO TORU
IPC分类号： F02M59/44 , F04B53/02 , F04B53/18
CPC分类号： F02M63/0225 , F02M59/102 , F02M59/265 , F02M63/0001 , F02M2200/02 , F04B1/0421
摘要： PROBLEM TO BE SOLVED: To provide a high pressure fuel pump provided with a plunger sliding on a cylinder and compressing and pressurizing fuel introduced from a suction valve mechanism into a pressurization chamber to deliver it from a delivery valve mechanism by reciprocating the end of the plunger in the pressurization chamber, high in lubricity and robustness. SOLUTION: In order to achieve the above objective, according to the present invention, a communication passage supplying fuel from the inside of the pressurization chamber to the sliding surface part between the cylinder and the plunger is formed in the cylinder. According to the structural arrangement of the present invention, the robust high pressure fuel pump is provided which can stably supply fuel to the sliding surface part between the cylinder and the plunger even if the plunger is driven at a high speed. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种高压燃料泵，其设置有在气缸上滑动的柱塞，并且将从吸入阀机构引入的燃料压缩和加压到加压室中，以通过往复运动的端部将其从输送阀机构输送的加压室中的柱塞，润滑性和坚固性高。解决方案为了实现上述目的，根据本发明，在气缸中形成有从加压室内部向缸体和柱塞之间的滑动面部供给燃料的连通通路。根据本发明的结构结构，提供了坚固的高压燃料泵，即使高速驱动柱塞，也能够稳定地向缸体和柱塞之间的滑动面部供给燃料。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007113462A High pressure fuel supply system using variable displacement fuel pump 有权
标题翻译：使用可变位移燃油泵的高压燃油供应系统
公开(公告)号：JP2007113462A
公开(公告)日：2007-05-10
申请号：JP2005304671
申请日：2005-10-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TOKUO KENICHIRO , YAMADA HIROYUKI , USUI SATOSHI
IPC分类号： F02M47/00 , F02M51/00 , F02M59/36 , F02M63/00
CPC分类号： F02D41/3845 , F02D41/3854 , F02D2041/2027 , F02M59/366 , F02M59/367 , F02M63/0225
摘要： PROBLEM TO BE SOLVED: To provide a high pressure fuel supply system of an engine, which can reduce the amount of heat generation in an electromagnetic valve with simple constitution without using a costly current control circuit. SOLUTION: The high pressure fuel supply system is provided with a high pressure fuel pump which has a compression chamber of the fuel; a pressurizing member to feed under pressure the fuel in the compression chamber to a discharge passage; a high pressure fuel pump having a normal closed electromagnetic valve installed in a suction passage, compresses the fuel in the pressurizing chamber by the switching motion of the electromagnetic valve and the reciprocating motion of the pressurizing member; and a controller to calculate a valve opening signal and a valve closing signal to the electromagnetic valve based on the status quantity of the engine, and to supply a drive current to the electromagnetic valve. While the electromagnetic valve is opened, the controller applies the valve closing signal shorter than valve closing response time (refer to FIG. 3(5)), that is, the time after the valve closing signal application until the electromagnetic valve closing (refer to FIG. 3(2), (4)). While the electromagnetic valve is opened, the controller applies the valve closing signal and the valve opening signal alternately and periodically (refer to FIG. 3(2)). COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种发动机的高压燃料供给系统，其能够以简单的结构减少电磁阀中的发热量而不使用昂贵的电流控制电路。解决方案：高压燃料供给系统设置有具有燃料的压缩室的高压燃料泵; 加压部件，其将压缩室内的燃料在压力下供给到排出通路; 具有安装在吸入通道中的普通闭合电磁阀的高压燃料泵通过电磁阀的切换运动和加压构件的往复运动来压缩加压室内的燃料; 以及控制器，用于基于发动机的状态量来计算开阀信号和关闭电磁阀的信号，并向电磁阀提供驱动电流。当电磁阀打开时，控制器施加比闭阀响应时间短的关闭信号（参见图3（5）），即在关闭信号之前的时间，直到电磁阀关闭（参见图3（2），（4））。当电磁阀打开时，控制器交替地周期性地施加闭阀信号和开阀信号（参见图3（2））。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006291838A High pressure fuel pump 审中-公开
标题翻译：高压燃油泵
公开(公告)号：JP2006291838A
公开(公告)日：2006-10-26
申请号：JP2005112963
申请日：2005-04-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ABE MASAMI , YAMADA HIROYUKI , ONOSE TORU , USUI SATOSHI , TOKUO KENICHIRO
IPC分类号： F02M59/36 , F02M47/00 , F02M59/34 , F02M59/46 , F04B53/10
摘要： PROBLEM TO BE SOLVED: To stabilize the operation of an overflow control valve by preventing the effect of operating pressure of fuel when overflowing, on the control valve for the overflowing fuel. SOLUTION: An intake valve is isolated from a fluid passage to prevent the effect of the fluid force (dynamic pressure) of fuel overflowing through the fluid passage on the back face of the intake valve arranged in the fluid passage between a suction port and a pressure chamber. This reduces the effect of the fluid force on the intake valve with the fuel flowing back in a return process (an overflow process). A load on an actuator is reduced, leading to a higher rotating speed and a greater flow amount. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了通过防止在溢出时燃料的操作压力对溢出燃料的控制阀的影响来稳定溢流控制阀的操作。解决方案：进气阀与流体通道隔离，以防止通过流体通道溢出的燃料的流体力（动态压力）在布置在流体通道中的进气门的背面上的作用在吸入口和压力室。这降低了在返回过程（溢出过程）中燃料回流的进气阀上的流体力的影响。致动器上的负载减小，导致更高的转速和更大的流量。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006250086A Electromagnetic drive mechanism, high-pressure fuel supply pump with intake valve operated by solenoid valve mechanism and electromagnetic drive mechanism, and high-pressure fuel supply pump with solenoid valve mechanism 有权
标题翻译：电磁驱动机构，具有由电磁阀机构和电磁驱动机构操作的进料阀的高压燃油泵，以及具有电磁阀机构的高压燃料供应泵
公开(公告)号：JP2006250086A
公开(公告)日：2006-09-21
申请号：JP2005069668
申请日：2005-03-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： USUI SATOSHI , TOKUO KENICHIRO , YAMADA HIROYUKI , ABE MASAMI , ODAKURA HIROSHI
IPC分类号： F02M51/00 , F02M51/04 , F02M59/36 , F02M59/44 , F02M59/46 , F16K31/06
CPC分类号： F02D41/20 , F02D2041/2027 , F02D2041/2058 , F02M59/102 , F02M59/367 , F02M63/0017 , F02M63/0035 , F02M63/0225 , F02M63/024 , F02M2200/09 , F02M2200/315
摘要： PROBLEM TO BE SOLVED: To reduce operation noise of an electromagnetic drive mechanism, for example, which is used for a variable displacement control mechanism of a high-pressure fuel supply pump, in a method preventing machine differences due to aging and mounting tolerance. SOLUTION: A plunger electromagnetically driven by the electromagnetic drive mechanism is constituted so as to be stroked until a specific position by other displacement force before drive force is supplied by the electromagnetic drive mechanism. Due to this, compared to the case where all stroke is displaced by magnetic energizing force, impact force of a member mounted to the plunger (for example, a valve element) and a regulating member is weakened, and collision noise can be reduced. Moreover, since additional members such as a vibration damping member are unnecessary, machine differences are difficult to occur. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了减少例如用于高压燃料供给泵的可变排量控制机构的电磁驱动机构的操作噪声，以防止机器由于老化和安装而引起的差异公差。解决方案：由电磁驱动机构电磁驱动的柱塞构成为通过电磁驱动机构供给驱动力之前通过其他位移力进行擦拭直到特定位置。由此，与通过磁力赋予所有行程的情况相比，安装在柱塞（例如阀芯）和调节部件上的部件的冲击力变弱，可以降低碰撞噪音。此外，由于不需要诸如减振构件的附加构件，难以发生机器差异。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006161661A Control device for variable capacity type fuel pump, and fuel supplying system 有权
标题翻译：可变容量型燃油泵的控制装置和燃油供应系统
公开(公告)号：JP2006161661A
公开(公告)日：2006-06-22
申请号：JP2004353491
申请日：2004-12-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TOKUO KENICHIRO , USUI SATOSHI , YAMADA HIROYUKI
IPC分类号： F02D41/36 , F02D41/04 , F02D41/34
CPC分类号： F02D41/3845 , F02D41/406 , F02D2200/025 , F02D2200/0618 , F02M59/368 , F02M2200/09
摘要： PROBLEM TO BE SOLVED: To avoid overlap of timing of noise due to drive of a fuel pump and noise due to drive of an injector. SOLUTION: In a specified timing estimated to be overlapped or a specified timing determined to be overlapped, the number of pump driving signal is thinned out, or timing is displaced forward and backward. COPYRIGHT: (C)2006,JPO&NCIPI

10. 发明专利

JP2005042554A Damper mechanism and high pressure fuel supply pump 有权
标题翻译：阻尼机构和高压燃油泵
公开(公告)号：JP2005042554A
公开(公告)日：2005-02-17
申请号：JP2003199946
申请日：2003-07-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： USUI SATOSHI , HASHIDA MINORU
IPC分类号： F02M59/44 , F02M55/04 , F02M59/36 , F02M63/00 , F02M63/02 , F04B11/00
CPC分类号： F02M55/04 , F02M59/366 , F02M63/0225 , F02M63/028 , F02M2200/24 , F02M2200/315 , F04B11/0016
摘要： PROBLEM TO BE SOLVED: To obtain a damper mechanism having a small size and a high performance for reducing the pulsation of the low pressure side fuel of a high pressure fuel supply pump or the high pressure fuel supply pump having the damper mechanism having the small size and the high performance in a high pressure fuel supply system. SOLUTION: The damper mechanism includes a metal diaphragm assembly (also called two-sheet type metal diaphragm damper) in which two metal diaphragms are welded at entire peripheries sandwiched between the entire peripheries except the welded parts (for example, inner peripheral sides) or parts by a pressing member, and fixed to a storage container. The storage container can be formed integrally with a body of the high pressure pump. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了获得具有小尺寸和高性能的减震机构，用于降低高压燃料供应泵的低压侧燃料的脉动或具有减震机构的高压燃料供给泵，具有在高压燃料供应系统中体积小，性能高。解决方案：阻尼器机构包括金属隔膜组件（也称为两片式金属隔膜阻尼器），其中两个金属隔膜在除了焊接部分之外的整个周边的整个周边焊接（例如，内周侧）或部件，并且固定到存储容器。储存容器可以与高压泵的主体一体地形成。版权所有（C）2005，JPO＆NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式